In Russian we have an idiom that translates to English literally as
- To get more milk from your cow and spend less on food, you should feed your cow less and milk it more.
It's usually used sarcastically. Are there any similar idioms in English?
It's often used in job context when talking about poor management. In other words, I'd formulate this idiom as "Be as selfish and cruel as possible, even if it harms your own interests".